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Chapter 1.0 <br />STORMWATER MANAGEMENT IN EUGENE <br />This chapter outlines the City of Eugene's stormwater management requirements. <br />1.1 <br />INTRODUCTION ....................................................... :............................................................. 2 <br />1.2 <br />PURPOSE OF THE MANUAL ................................................................. ............................... 3 <br />1.3 <br />SUMMARY OF MANUAL CONTENTS .................................................. ............................... 4 <br />1.4 <br />DEFINITIONS ............................................................................................. ..............................6 <br />1.5 <br />PREPARING A STORMWATER MANAGEMENT PLAN .................. .............................13 <br />1.6 <br />STORMWATER FLOOD CONTROL ..................................................... .............................15 <br />1.6.1 The Purpose of Stormwater Flood Control ............. .............................15 <br />1.6.2 Flood Control Design Methodology ........................ .............................15 <br />1.6.3 Off -Site Stormwater Facilities ................................... .............................15 <br />1.6.4 On -Site Retention and Detention ............................. .............................16 <br />1.6.5 Underground Injection Control Structures (UICs) .............................16 <br />1.7 <br />STORMWATER QUALITY ..................................................................... .............................17 <br />1.7.1 The Purpose of Stormwater Quality ........................ .............................17 <br />1.7.2 Stormwater Quality Design Methodologies ........... .............................17 <br />1.8 <br />OIL CONTROL FOR HIGH -RISK VEHICLE AND EQUIPMENT TRAFFIC AREAS.. <br />18 <br />1.9 <br />- FLOW CONTROL ...................................................................................... .............................19 <br />1.10 <br />INTERLOT DRAINAGE ........................................................................... .............................20 <br />1.11 <br />OTHER REGULATORY STORMWATER PROGRAMS .................... .............................21 <br />1.11.1 Illicit Discharge Program ......................................... ............................... <br />21 <br />1.11.2 Industrial Pretreatment Program ........................... ............................... <br />21 <br />1.11.3 Oregon DEQ Underground Injection Control (UIC) Program......... <br />21 <br />1.11.4 Other Local, State, and Federal Programs ............ ............................... <br />21 <br />1.12 <br />STORMWATER MANAGEMENT RETROFITS .................................. .............................23 <br />1.13 <br />STORMWATER SYSTEM DEVELOPMENT CHARGES .................... .............................24 <br />1.13.1 Credits ........................................................................ ............................... <br />24 <br />1.14 <br />EQUIVALENT ON -SITE AREA GUIDELINES ..................................... .............................26 <br />Stormwater Management Manual 1 1 <br />Eugene 2014 <br />